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Finding the Fourth Proportional to 204,941.20, 307,411.80 and 144,806.80

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Solution

The fourth proportional to 204,941.20, 307,411.80 and 144,806.80 is: 217,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,941.20 : 307,411.80 = 144,806.80 : x
  2. Step 2: Convert to fraction form
    204,941.20/307,411.80 = 144,806.80/x
  3. Step 3: Cross multiply
    204,941.20x = 307,411.80 × 144,806.80
  4. Step 4: Simplify right side
    204,941.20x = 44,515,319,040.24
  5. Step 5: Solve for x
    x = 44,515,319,040.24/204,941.20
  6. Step 6: Final answer
    x = 217,210.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.